Gas-burner.



PATENTED DEC. 11, 1906.

F. M. ASHLEY.. GAS BURNER.

APPLICATION FILED MAY 25, 1899.

2 SHEETS-SHEET 1.

WITNESSES WGMMM wm ATTORNEY TER$ co, WASHINOYUN, u. c.

No. 888,156. PATENTED DEC. 11, 1906.

. ,P. M. ASHLEY.-

GAS BURNER.

APPLICATION FILED MAY 25, 1899.

' 2 SHEETS-SHEET'Z.

WITNESSES:

THE NORRIS PETERS co. WAsHINGTON. m c.

useful Improvements in Gas-Burners, of

FRANK M. ASHLEY, OF NEW YORK,

ALBERT T. SCHARPS,

N. Y., ASSIGNOR OF ONE-HALF TO OF NEW YORK, N. Y.

GAS-BURNER.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed May 25, 1899. Serial No. 718.242.

To aZZ whom it may concern.-

Be it known that I, FRANK M. AsHLEY, a citizen of the United States, residing at New York city, in the county of Kings and State of New York, have invented certain new and which the following is a full, clear, and exact specification.

This invention relates to gas-burners, and has particular reference to burners used for the burning of acetylene gas and other gases rich in hydrocarbon.

The invention is particularly applicable for burning gas for heating purposes.

The object of the inventlon is to provide a burner which shall thoroughly intermix the gas with air and burn the mixture. I have found that if the gas can be burned in cylindrical form the air on the inside of the cylinder becoming heated is intermixed with the flame, and I therefore desire by this invention to provide a burner which will burn gas in such a way as to produce a cylindrical flame.

The invention comprehends various other features of advantage, which willmore clearly appear hereinafter and will be pointed out in the accompanying claims.

In the drawings, in which I have illustrated various forms which the invention may take in practice, Figure 1 is a sectional view of a burner constructed in accordance with my invention. Fig. 2 is a similar view of a modification. Fig. 3 is a top view of a still further modification. Fig. 4 is a side view of the burner shown in Fig. 3, and Fig. 5 is a sec tional view of the same burner.

Referring more particularly to the drawings, 1 represents a suitable body portion having a screw-thread 2 or other means for attaching the same to a pipe or other source of gas-supply. The body portion 1 is pro vided with an outwardly-flaring annular rim or flange 3, thereby forming in the body por tion a bell-shaped opening. Near the base of the bell-shaped portion 4 at intervals are formed a number of air-inlet openings 4 4. Preferably, for a purpose to be hereinafter described, I also form in the lower part of the bell-shaped portion, which is a continuation of the passage 6, to be hereinafter described, an annular chamber 5, into which the said openings 4 discharge, as illustrated lll'Flg. l

2. A plug 3*, is adapted to fit tightly into the body portion 1, as illustrated in the drawings, the coneshaped head being substantially the same shape as the flange portion 3 of the body portion 1, whereby an annular mixing-passage 6 will be formedbetween the plug and bellshaped opening. In the lower end of the plug 3 is formed an axial chamber 7 in communication with the source of gas-supply, and from the chamber 7 a number of gaspassages 8 8 8 lead into the passage 6 or into the annular chamber 5. If preferred, the annular chamber 5 may be formed in the plug instead of the bell-shaped portion, as is illustrated in Fig. 5.

In the operation of the device it is desirable that means should be provided for varying the size of the openings 4 in order that a greater or less quantity of air may be drawn in from the surrounding atmos here to be mixed with the gas, and I have siiown such a means in the burner illustrated in Figs. 3 to 5.

Referring more particularly to Figs. 4 and 5, 9 represents a cap adapted to be screwed upon the base 1 and having provided therein a number of perforations 10 10, the arrangement being such that when the cap is screwed up tightly against the base portion the openings 4 and 10 will not register with each other, and therefore the cap will close the openings 4. If the cap be unscrewed, air will be allowed to enter through the openings 10 and passage 4 in proportion to the size of the chamber 11 formed between the cap and the body. In the operation of the burner the gas will be drawn into chamber 7 from the source of supply and from chamber 7 will pass under considerable pressure through the openings 8 into the passage 6. Inasmuch as the passages 8 are preferably made of smaller area in the aggregate than that of the passage 7, the gas will pass through the openings 8 in considerable pressure and will induce air from the surrounding atmosphere through the openings 4. The gas and air combined passes up through passage 6 and is consumed at the end of the burner. A more perfect combustion is secured with the use of the annular having a cone-shaped head,. I

chamber 5, inasmuch as the gas coming through the openings 8 under pressure will be allowed to expand therein and will receive more air and will be more thoroughly mixed with the same than is the case when the chamber is not used.

The size of the annular mixing-chamber 6 and the relative sizes of the gas-inlet passage 8 and annular chamber 5 and the air-inlet assages 4 may be varied in all of the modified forms by sliding the plug 3" in the body portion. This plug is fitted tightly into the ody portion, because it is infrequently necessary to make an adjustment; but the plug is fitted as shown in the drawings, so that this adjustment can be made.

Having thus described my invention, I declare that what I claim as new, and desire to secure by Letters Patent, is

1. In a gas-burner, a body having an outwardly-flaring flange, a plug fitted in said body Within said flange, an air-inlet in said flange, a gas-'nlet in said body, and a mixingpassage formed between said plug and said body and in communication with said air and gas inlets, substantially as described.

2. In a gas-burner, a body having an outwardly-flaring flange, a plug in said body within said flange forming a mixing-chamber between said plug and flange, an air-inlet in said flange and a gas-inlet in said body, said inlets communicating with said mixingchamber, the structure being adapted for varying the proportions of air and gas admitted to said mixing-chamber.

3. In a gas-burner a body having a bellshaped opening, a plug fixed therein and having a conical head located in said bell-shaped opening, thereby forming an annular passage between the same, an annular chamber at the base of said passage, a chamber in said plug, a gas-inlet to said chamber, and a plurality of passages from said chamber to said annular chamber, substantially as described.

4. In a gas-burner, a body having a bellshaped opening, a plug fiXed therein and having a conical head located in said bell-shaped opening thereby forming an annular passage between the same, an annular chamber at the base of said passage, a chamber in said plug, a gas-inlet to said chamber, a plurality of contracted passages from said chamber to said annular chamber, substantially as described.

5. In a gas-burner, a body having an outwardly-flaring flange, an air-inlet in said flange, a plug movably mounted in said body and having an expanded head, whereby an annular mixing-chamber is formed between said head and said flange, a gas-inlet opening in said plug, and passages in said plug fiom said inlet-opening to said mixing-chamber, substantially as described.

6. In a gas-burner a body having a bellshaped opening, a plug therein containing a chamber and having a conical head located in said bell-shaped opening thereby forming an annular passage, a gas-inlet to said chamber, the structure having a plurality of passages from said chamber to said annular passage and a plurality of o enings from the atmosphere to said annuIar passage, said structure being adapted for varying the proportions of air and gas admitted to the annular passage.

7. In a gas-burner, a body having a bellshaped opening, a plug therein containing a chamber and having a conical head located in said bell-shaped opening, thereby forming an annular V assage between the same, an annular cham ver at the base of said passage, a gasinlet to the plugchamber, the structure having a plurality of passages from said plugchamber to said annular chamber, and a plurality of openings from the atmosphere to said annular chamber, said structure being adapted for varying the proportions of the air admitted through the last-named openings.

8. A burner comprising a body having an outwardly-flaring flange provided with an air-inlet, an inner head fitted in the body and forming between the head and flange an annular mixing-chamber, and a gas-inlet to said mixing-chamber.

9. A burner comprising a body portion having an outwardly-flaring flange and an inner head forming between the same an annular mixing-chamber, a gas-inlet to said mixing-chamber and a passage from the air to said mixing-chamber, the structure being adapted for varying the size of the mixingchamber.

10. In a gas-burner, a body having an outwardly-flarmg flange, a plug fitted in said body within said flange, an air-inlet in said flange, a gas-inlet in said body, a mixingpassage formed between said plug and said body and in communication with said air and gas inlets, and means for varying the area of said mixing-passage In testimony whereof I afliX my signature in presence of two witnesses.

FRANK M. ASHLEY.

Witnesses:

PHILIP H. BUOKLER, ALEX FERGUSON. 

